However, it has proved difficult to make the concept of “sustainable debt” fully operational, especially since the performance of the world economy has repeatedly disappointed the expectations built into the scenarios on which the assessment of a country's debt-carrying capacity needs to be based.
No obstante, ha resultado difícil dar plena efectividad operacional al concepto de “deuda sostenible”, especialmente cuando el desempeño de la economía mundial ha frustrado repetidamente las expectativas integradas en las hipótesis en que tienen que basarse las evaluaciones de la capacidad crediticia de los países.